NWS Key West

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Last Map Update: Wed, Oct 21, 2026 at 10:06:30 am EDT

Watches, Warnings & Advisories

National Weather Service National Weather Service

National Weather Service Tampa Bay Area, FL

National Weather Service Miami - South Florida

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Coastal Flood Advisory

Small Craft Advisory

Rip Current Statement

Coastal Flood Statement

Small Craft Should Exercise Caution

Coastal Flood Advisory: Upper Keys

Island Chain

Marine Winds

Wave Heights

Small Craft Should Exercise Caution all Florida Keys coastal waters until winds decrease, except in the Straits where until seas subside is also headlined. A Slight chance of showers Florida Straits. A Coastal Flood Advisory Remains in effect for the Upper Keys A Coastal Flood Statement Remains in effect for the Middle Keys

Coastal Flood Advisory in effect for the Upper Keys! Coastal Flood Statement in effect for the Lower and Middle Keys! Through Thursday morning, saltwater flooding of low elevation streets and lots is expected, with some roads being impassable or saltwater unavoidable. Some storm drains will overflow & some seawalls/docks will be overtopped. Boaters should also expect less clearance under fixed bridges.

***A COASTAL FLOOD ADVISORY REMAINS IN EFFECT FOR THE UPPER KEYS*** ***A COASTAL FLOOD STATEMENT REMAINS IN EFFECT FOR THE MIDDLE KEYS*** UPPER KEYS: TODAY: Mostly sunny. Highs in the lower to mid 80s. North to northeast winds near 15 mph, decreasing to 10 to 15 mph. MIDDLE AND LOWER KEYS: TODAY: Mostly sunny. Breezy in the morning. Highs in the lower to mid 80s. North to northeast winds 15 to 20 mph, decreasing to near 10 mph.

Small Craft Should Exercise Caution Until Winds Decrease All Keys Coastal Waters, except Straits of Florida where until seas subside is also headlined. TODAY: Moderate to fresh N-NE breezes, decreasing to gentle to moderate breezes, except becoming light to gentle breezes Bay/Gulfside waters. Seas: Bay/Gulfside 2-3 ft, subsiding to 1-2 ft, except W of the Marquesas 3-4 ft, ocsnl 5 ft, subsiding to 2-3 ft; Hawk Channel 2-3 ft, subsiding to 1-2 ft, except W of Cosgrove 3-4 ft, ocsnl 5 ft, subsiding to 2-3 ft; FL Straits 4-6 ft, ocsnl 8 ft, subsiding to 3-5 ft, occasionally to 6 ft; SE Gulf 3-5 ft, ocsnl 6 ft, subsiding to 2-3 ft. Bay / nearshore waters choppy, becoming a light to moderate chop, except becoming smooth to a light chop Bay/Gulfside waters. A slight chance of showers Florida Straits.

Small Craft Should Exercise Caution Until Winds Decrease All Keys Coastal Waters, except Straits of Florida where until seas subside is also headlined. TODAY: Moderate to fresh N-NE breezes, decreasing to gentle to moderate breezes, except becoming light to gentle breezes Bay/Gulfside waters. Seas: Bay/Gulfside 2-3 ft, subsiding to 1-2 ft, except W of the Marquesas 3-4 ft, ocsnl 5 ft, subsiding to 2-3 ft; Hawk Channel 2-3 ft, subsiding to 1-2 ft, except W of Cosgrove 3-4 ft, ocsnl 5 ft, subsiding to 2-3 ft; FL Straits 4-6 ft, ocsnl 8 ft, subsiding to 3-5 ft, occasionally to 6 ft; SE Gulf 3-5 ft, ocsnl 6 ft, subsiding to 2-3 ft. Bay / nearshore waters choppy, becoming a light to moderate chop, except becoming smooth to a light chop Bay/Gulfside waters. A slight chance of showers Florida Straits.